PS2701-1-F3-Y-A Optoisolator Equivalent & Substitute Parts

Part Overview

The PS2701-1-F3-Y-A is a single-channel optoisolator with transistor output, rated for 3750Vrms isolation voltage. This component is designed for applications requiring galvanic isolation in DC input circuits with transistor-based output switching. The part is discontinued at DiGi Electronics, making identification of compatible substitutes essential for ongoing production and maintenance applications. Equivalent parts must maintain identical electrical performance and isolation characteristics while accommodating packaging and sourcing constraints.

Substiute Parts

PS2701-1-F3-Y-A

CELIn Stock: 1202PS2701-1-F3-Y-A Datasheet

Current PartRFQ

PS2701-1-F3-A

Renesas Electronics CorporationIn Stock: 355266PS2701-1-F3-A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS2701-1-F3-Y-A is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Isolation voltage: 3750Vrms (non-negotiable)
• Number of channels: 1 (single channel configuration)
• Current transfer ratio range: 50% to 300% @ 5mA
• Output type: Transistor (not photodiode or other output types)
• Maximum output voltage: 40V
• Maximum output current per channel: 80mA
• Vce saturation: 300mV maximum
• Rise and fall times: 3µs and 5µs respectively
• Input type: DC
• Operating temperature range: -55°C to 100°C

Mechanical and Compliance Equivalence Criteria:

• Mounting type: Surface Mount
• RoHS3 compliance
• Moisture sensitivity level: 1 (Unlimited)
• REACH unaffected status

The PS2701-1-F3-A qualifies as a parametric equivalent based on identical electrical specifications and compliance certifications. Package configuration differences (4-SMD Gull Wing vs. 4-SOP) represent the primary distinction and must be evaluated against PCB layout requirements.

Parameter Comparison

Engineering Selection Recommendations

PS2701-1-F3-A Substitution Feasibility:

The PS2701-1-F3-A is electrically and functionally equivalent to the PS2701-1-F3-Y-A across all critical performance parameters. Both parts share identical isolation voltage, current transfer ratio specifications, output characteristics, and operating temperature ranges. Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating.

Sourcing Consideration:

The PS2701-1-F3-A demonstrates significantly higher inventory availability (355,200 pieces) compared to the main part (1,125 pieces), supporting long-term supply chain continuity. However, both parts carry legacy product status, indicating limited future availability from manufacturers.

Package Configuration Note:

The supplier device package designation differs (4-SMD versus 4-SOP), though both maintain identical mechanical package and gull wing configuration. PCB layout compatibility must be verified against specific footprint requirements before implementation.

Compliance Status:

Both parts satisfy ROHS3 and REACH requirements, supporting deployment in regulated applications without additional environmental compliance modifications.

Frequently Asked Questions (FAQ)

Q: Can PS2701-1-F3-A directly replace PS2701-1-F3-Y-A in existing designs?

A: Yes, from an electrical and functional standpoint. All critical parameters including isolation voltage, current transfer ratio, output voltage/current ratings, and operating temperature range are identical. PCB footprint compatibility must be confirmed before implementation.

Q: What is the significance of the different supplier device package designations (4-SMD vs. 4-SOP)?

A: Both designations refer to surface mount packages with identical mechanical dimensions and gull wing lead configuration. The distinction reflects supplier packaging methodology rather than physical differences. Verify footprint compatibility with your PCB design files.

Q: Why are both parts marked as legacy or discontinued?

A: The PS2701-1-F3-Y-A is discontinued at DiGi Electronics, and the PS2701-1-F3-A is marked "Not For New Designs." Both parts belong to the NEPOC series, which has transitioned to end-of-life status. For new designs, evaluation of current-generation optoisolator alternatives is recommended.

Q: Are there any electrical performance differences between these parts?

A: No. Current transfer ratio, isolation voltage, output characteristics, saturation voltage, and switching times are identical across both parts.

Q: What compliance certifications apply to both parts?

A: Both PS2701-1-F3-Y-A and PS2701-1-F3-A are ROHS3 compliant, REACH unaffected, and carry moisture sensitivity level 1 (unlimited). Both support deployment in regulated applications.

Q: Which part should be selected for new inventory procurement?

A: The PS2701-1-F3-A offers substantially higher inventory availability (355,200 pieces vs. 1,125 pieces). However, given legacy product status of both parts, long-term supply cannot be guaranteed. Current-generation optoisolator evaluation is recommended for new production commitments.